Boro land submerged in flash flood United News of Bangladesh . Jamalpur Flash flood in river Jamuna has submerged standing boro paddy fields of several hundred acres in char and low lying areas along the river. Farmers were seen on Saturday cutting the half ripen boro paddy in the affected areas of Islampur, Dewanganj and Sarishabari upazila. The Islampur upazila agriculture officer, Prodip Kumar Shaha, returning from some of the affected areas said at least 300 acres have gone under water in Kulkandi, Sapdhari, Belgachha and Noarpara unions.